Grandes Rocques (Beach) (Guernsey) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.



Forecast days

Sunny intervals changing to light rain by early evening.
Beach safety today
Very large, powerful waves and strong wind
  • • very high likelihood of injury in or near the sea

Tide: Next low tide (1.7m) at

Sunrise iconSunrise:
Sunset iconSunset:
VH UV
L Pollution
No pollen data.

    7 day forecast for Grandes Rocques (Beach)

    Today (15 July 2025)
    Time
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Clear night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Light rain Light rain Light rain Light rain
    Chance of precipitation
    10%
    20%
    20%
    30%
    30%
    20%
    20%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    30%
    40%
    70%
    80%
    80%
    80%
    Temperature
    16°
    16°
    16°
    16°
    16°
    17°
    18°
    18°
    19°
    19°
    19°
    19°
    19°
    19°
    19°
    18°
    18°
    18°
    17°
    17°
    17°
    Feels like temperature (°C)
    12°
    12°
    12°
    12°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    13°
    Wind direction and speed
    WSW
    20
    SW
    19
    SW
    19
    SW
    19
    SW
    20
    SW
    20
    SW
    21
    SW
    22
    WSW
    22
    WSW
    23
    WSW
    23
    WSW
    23
    WSW
    24
    WSW
    23
    WSW
    23
    WSW
    22
    WSW
    21
    WSW
    21
    WSW
    21
    WSW
    21
    WSW
    21
    Wind gust (mph)
    28
    28
    28
    29
    29
    30
    30
    31
    31
    32
    32
    33
    34
    33
    32
    32
    31
    31
    30
    30
    29
    Visibility
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    Humidity
    74%
    75%
    75%
    75%
    75%
    75%
    75%
    75%
    74%
    74%
    74%
    75%
    75%
    75%
    77%
    82%
    84%
    87%
    90%
    91%
    92%
    UV - - 1 1 1 2 3 5 6 8 8 8 6 5 3 1 1 1 1 - -
    Wind direction and speed
    19
    19
    19
    19
    19
    20
    21
    21
    22
    22
    23
    23
    24
    23
    23
    22
    21
    21
    21
    21
    20
    Height of waves offshore (m)
    1.8
    1.8
    1.7
    1.7
    1.8
    1.9
    1.9
    2.0
    2.0
    2.0
    2.0
    2.1
    2.2
    2.3
    2.3
    2.3
    2.4
    2.3
    2.3
    2.2
    2.1
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    10
    10
    10
    10
    10
    10
    10
    10
    9
    9
    9
    10
    10
    10
    10
    Direction of waves offshore
    Wednesday (16 July 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    80%
    80%
    80%
    70%
    90%
    80%
    80%
    80%
    70%
    60%
    70%
    60%
    50%
    50%
    50%
    40%
    30%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    17°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    Wind direction and speed (mph)
    WSW
    21
    WSW
    21
    WSW
    20
    WSW
    20
    WSW
    19
    WSW
    18
    WSW
    17
    WSW
    18
    WSW
    18
    WSW
    19
    WSW
    20
    WSW
    20
    WSW
    19
    WSW
    18
    WSW
    18
    W
    18
    W
    18
    W
    17
    W
    17
    W
    16
    W
    16
    W
    15
    W
    14
    W
    13
    Wind gust (mph)
    29
    28
    27
    25
    24
    24
    23
    22
    24
    25
    26
    25
    24
    23
    24
    25
    23
    22
    22
    22
    20
    20
    19
    18
    Visibility (description)
    VG
    VG
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    G
    M
    M
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    Humidity
    91%
    92%
    92%
    92%
    92%
    93%
    93%
    93%
    93%
    94%
    96%
    97%
    97%
    98%
    97%
    97%
    97%
    96%
    97%
    97%
    96%
    96%
    95%
    95%
    UV - - - - - 1 1 1 1 1 2 3 4 4 4 3 3 2 1 1 1 1 - -
    Wind direction and speed (mph)
    20
    20
    20
    19
    18
    18
    17
    17
    17
    18
    19
    19
    19
    19
    19
    19
    18
    18
    18
    17
    17
    16
    15
    13
    Height of waves offshore (m)
    1.9
    1.8
    1.7
    1.7
    1.6
    1.5
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.4
    1.3
    1.2
    1.2
    1.2
    1.2
    1.1
    Period of waves offshore (s)
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    9
    9
    9
    9
    9
    9
    9
    9
    8
    8
    8
    8
    8
    8
    Direction of waves offshore
    Thursday (17 July 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    17°
    17°
    17°
    17°
    19°
    20°
    21°
    19°
    17°
    Feels like temperature (°C)
    16°
    16°
    16°
    16°
    19°
    20°
    21°
    20°
    18°
    Wind direction and speed (mph)
    W
    12
    W
    11
    W
    9
    WSW
    8
    WSW
    8
    W
    9
    WNW
    6
    W
    5
    WSW
    5
    Wind gust (mph)
    18
    16
    14
    11
    11
    10
    9
    9
    9
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    96%
    96%
    96%
    96%
    94%
    92%
    90%
    89%
    90%
    UV - - - 1 4 7 4 1 -
    Wind direction and speed (mph)
    12
    12
    11
    9
    9
    10
    7
    7
    6
    Height of waves offshore (m)
    1.1
    1.1
    1.0
    0.8
    0.9
    0.9
    0.9
    0.9
    0.8
    Period of waves offshore (s)
    8
    8
    8
    8
    9
    9
    9
    9
    9
    Direction of waves offshore
    Friday (18 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    17°
    16°
    17°
    19°
    20°
    20°
    19°
    17°
    Feels like temperature (°C)
    17°
    16°
    17°
    20°
    21°
    21°
    19°
    17°
    Wind direction and speed (mph)
    SSW
    5
    SSW
    5
    WSW
    6
    N
    6
    NNW
    7
    NNW
    8
    NNW
    8
    NW
    6
    Wind gust (mph)
    9
    8
    8
    9
    10
    11
    11
    10
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    92%
    92%
    93%
    93%
    92%
    91%
    89%
    89%
    UV - - 1 5 8 4 1 -
    Wind direction and speed (mph)
    5
    5
    5
    6
    7
    8
    9
    7
    Height of waves offshore (m)
    0.9
    0.9
    0.9
    0.9
    0.9
    0.8
    0.8
    0.8
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Saturday (19 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    30%
    40%
    40%
    30%
    30%
    20%
    40%
    50%
    Temperature (°C)
    17°
    17°
    17°
    18°
    19°
    19°
    19°
    18°
    Feels like temperature (°C)
    16°
    16°
    16°
    17°
    18°
    17°
    17°
    16°
    Wind direction and speed (mph)
    WNW
    6
    W
    8
    WNW
    9
    WNW
    11
    WNW
    11
    W
    12
    W
    13
    SW
    13
    Wind gust (mph)
    11
    11
    12
    12
    11
    12
    13
    15
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    89%
    89%
    88%
    87%
    86%
    85%
    86%
    UV - - 1 4 8 4 1 -
    Wind direction and speed (mph)
    7
    8
    9
    11
    11
    12
    13
    13
    Height of waves offshore (m)
    0.7
    0.7
    0.7
    0.7
    0.8
    0.7
    0.8
    0.9
    Period of waves offshore (s)
    9
    9
    9
    8
    8
    8
    8
    8
    Direction of waves offshore
    Sunday (20 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    60%
    60%
    60%
    50%
    30%
    40%
    30%
    40%
    Temperature (°C)
    18°
    18°
    17°
    18°
    18°
    19°
    19°
    19°
    Feels like temperature (°C)
    16°
    16°
    15°
    16°
    16°
    16°
    16°
    17°
    Wind direction and speed (mph)
    SW
    14
    WSW
    15
    SW
    13
    WSW
    14
    WSW
    14
    W
    15
    W
    15
    W
    14
    Wind gust (mph)
    16
    16
    16
    15
    15
    16
    17
    18
    Visibility (description)
    VG
    VG
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    85%
    86%
    87%
    86%
    84%
    83%
    83%
    83%
    UV - - 1 5 8 5 1 -
    Wind direction and speed (mph)
    14
    14
    13
    14
    14
    15
    15
    14
    Height of waves offshore (m)
    1.3
    0.4
    Period of waves offshore (s)
    7
    8
    Direction of waves offshore
    Monday (21 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny day Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    40%
    40%
    40%
    30%
    10%
    10%
    10%
    20%
    Temperature (°C)
    18°
    18°
    18°
    18°
    19°
    19°
    19°
    19°
    Feels like temperature (°C)
    16°
    16°
    15°
    16°
    16°
    16°
    16°
    17°
    Wind direction and speed (mph)
    W
    14
    W
    14
    W
    14
    W
    15
    W
    17
    WSW
    16
    W
    16
    WSW
    15
    Wind gust (mph)
    19
    20
    19
    18
    19
    18
    19
    20
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    85%
    85%
    85%
    85%
    84%
    84%
    85%
    UV - - 1 5 8 4 1 -
    Wind direction and speed (mph)
    14
    Height of waves offshore (m)
    Period of waves offshore (s)
    Direction of waves offshore

    Tide times

    Tuesday 15 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 15 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 15 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 15 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 16 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 16 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 16 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 16 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 17 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 17 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 17 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 17 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 18 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 18 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 18 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 18 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 19 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 19 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 19 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 19 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 20 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 20 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 20 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 20 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 21 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 21 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 21 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 21 July

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

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    Forecast for 03:00 (UTC+1), Tue
    Updated 02:22 (UTC+1) on Tue 15 Jul 2025
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